Transmission-gearing.



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Patented Nov. 19, 1912.

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UNITED sTATEs PATENT WALTER o. scrmnrnnn, or DETROITyMI'cH'IGAN', Assroiv'oit orfana-THIRD To omvim G. Menus, or DET-noir, iviioiircaaiv,

TRANsi/irssroN-GEARI'NG.

Specification of Leeersiraenff Patented Nov. 19, 19112.

appiieation' nied october 17", "1910. sri'ai im.' 587,59'3."

l'b'ell whom it mayconcem.

Beit known that I, WAL'riiii Scanni-I ynua, a citizen of the United States of America, residing at Detroit, `in the county of lVayne' and tate of Michigan, have in` vented certain new and ,useful Improvements in Transmission-Gearing, of which the following is a specification, reference being had therein to-the. accompanying drawings.

Thisinvention relates to variable-speed power transmitting'gearing of the sliding gear type and itslobject. is to Vprovide a simi .ple

n shifting gears are always iii mesh with their cheap and compact construction iii which the parts are so arranged that the coperat-ing gears,land further to provide certain other new and useful features in the A construction'and arrangement of parts, all

as hereinafter more fully described, reference being had to the accompanying drawing in which- Figure l is a longitudinal vertical section through a device embodying the invention;

and Fig. v2 1s a transverse lsection of the.

saine substantially on the line mof Fig.l

1 and drawn to a reduced scale. Transmitting mechanisms of this type have usually been arranged so that the gears when shifted tochangetheffspeed or direction of motion, are moved into andout of mesh with their coperating gears, ,and thus in operation, when one' set of gearsis thrown. longitudinally into mesh'with the other,

there is liability of stripping the teeth, the

- teethfare quickly worn out y the constant disengagement and reiigagement of the same, andfthe bringing of the teeth together always causes a disagreeable grinding noise. Y

lin -applieants construction, the shifting gearsareinconstant meshlwitli their cooperating gears and thus the noise and-lia-y bility ofstripping-'the teeth is obviated.

As shown in the drawing, 1 is the driving shaft and 2 a driven shaft arranged in axial alinement. therewith, the driving'shaft being provided with -a squared innerend" 3 upon-Which` is sleeved a gear '-l having an extended hub portion 5 fitting tlie'squarem` end of lthe shaft 'to turn therewith. Said vhub 5 extends outward through a 'suitable i bearing hub -6 on :one end of a -easing Z and the driven shafty extends in an opposite rection through a bearinghub S-.at the opcasing in suitable bearings 9,4 is a counter'- .shaft 10 extending parallel with the driving 'and driven shafts. Secured. upon the counter shaft is a ,gearv llin mesh with vthe gear et on the driving shaft, and free to r.o` tate' andl slide longitudinally upon the countegral therewith or-otherwise secured thereto a gear 13 at one. end'and `atits end 'adjacent to the gear ll-isI provided with afiange or collar 1 4.' A gear 15 of larger diameter .than the gear'lB is mounted upon'tliesleeve moved longitudinally' of the 'countersliaft suitable lever or fork indicated iii dotted longitudinally movable operatin f'shaft 16. Mounted upon the driven sha 2 within the casing are gears 1T and '18 which areV otherwisey connected Pto. turn together. Fliese gears are free to slide longitudinally otherwiseformed to permit of such move'- ment and to cause the gears and shaft to4 tioned and arranged that they'ai'e in constant mesh with the'gearsll and 15 on the counter shaft to transmit motionfrom the counter shaft to the driven shaft, said gears being ofldiiiei'eiit relative diameters so that motion will be transmitted through the a higher rate of speed' than through t-lie gears 13 and 18. f

hitch members .or projections 19 are formed upon the inner end of the' gear -l to lengage and meshV with similar ribs: or pro-'- jections on the adjacent end of the gear 17.

onvits shaft toward the' gear lfthese interlocking .members 19 will-hebrought into engagementiandthe di'iv'ingjshaft will thus be diretly-c'onnected-- to kthe drijven' shaft to transmit motion 'theretoatthe full speed of the drivingshaft. p

Upon the innerend ofthe hub of the gear l1 are formed clutch members 2() to engage- .aiid interlock with similar members upon lVl-ienthe sleeve. 12v and gear' 15 mounted posite end. of the casing. -h/Iou'nteiii infthe fthereon are moved towardl the gear the.

Then the gear 17 is moved'longitudinally .ter shaft` is a sleeve 12 having formed'in-' i 12 between the' gear 18 and flange 14C to turn y freely upon the sleeve, and adapted .to -be l n i when the sleeve is moved by means of any lines in Fig. 2, which is interposed between 'said gears 15 and 13 and is secured 'total preferably formed of one piece or vmay'bef`l a l a i 4upon the driven shaft which is squared .or

turn. together.- These-gears are so propor- 9o gears 15 and 1T to turn the driven shaft at ica lthe adjacent end ofthe hub 'of the gear. 1.1".

clutch members 2O will be brought into locknient with each other and only sufficient "'in'g'positioii', and. the gear ,1T being moved movement of the "gears to dis'engage the. away from thelgear a to disengage the clutch clutches is necessary.. The construction is 19, motion v*will be transmitted from the therefore strong and compact and easeof 5 driving shaft through the gears t and v11 op'eiation'is insured by the use of clutches 70 and the clutch 2O to the gear 15 which is which 'are more quickly and easily thrown free to turn upon its sleeve 12 and is in .into mesh with'less noise and liability of mesh with the gear 1i', to transmit motion breakage than where the teeth of the gears through said gear to the driven shaft at a re are thrown into and out of engagementby l@ duced speed. a longitudinal movement. A 75 Secured 'upon the counter shaftat its end That I claim is:

' opposite to that upon which the gear11 is 1.' A` transmission gearing comprising"` secured, is a gear 21 and this gear is formed parallel shafts, a driving member' at oneend with clutch members 2.2 on' its inner end to o one shaft. connected thereto to lturn the 5 engage similar members on the end of` the same,' reversing gearing connecting theggnw hub of the gear 18, The clutch l 19l being shafts, a pair of gears on they shaft to whichy moved out yof operative position to disen-` the driving member is |seoiired, lsaid'gears gage the driven from the driving shaft, the being independently rotatable' upon the sleeve 12 may be moved loi'igitiidinallytoshaft 'and connected tomove together longif Y 2G. ward the gear-21 to bring the clutchQQ into tudinally of the shaft, a clutch for eonnectg5' operation 'and connect the gearI 13 with the ing said driving member with onel of' the Y. i counter shaftto turn therewith. Motion is gears', a Clutch for connecting the other gear then transmitted from the driving shaft to' with the shaft, a pair of gears on the other the counter shaft through the gears et and 11' shaft in constantI engagement with the inge- 25 and from said 'countershaft' through the pendently rotatable ge'ars, said 'pair of ge rs 90'- -fclutch 22 aiidgear 13 to the gear 18 which beingoperatively connected-totheir shaft to y isin mesh therewith and iis secured to the turn therewith and secured together tb'moveV f driven shaft to turn said shaft ata reduced' longitudinally upon the shaft, a. clutch for speed., said gears 18 and 18 being proporconnecting one of the gears of the last 39 tioned to transmita lower speed than the named pair to the reversing gears, and 95. gears 15 and 17.l y means formoving each pair of gears upon Sleeved upon the, driven shaft to turn their shafts to bring the clutches into operas l freely thereon is'a gear 23 which is loca-ted tive engagement. I

l direotyopposite the gear 21 on the counter- 2. transmission gearing comprising a :'35, shaft, and joiirnaled upon a stub shaft 24 on driving member, a driven shaft in axial 100 'the end of the casing is-an intermediate gear alinement with the driving member, gears 25 in constant mesh with both of the on the' driven shaft operativelyl connected gears 21 and Q3. The gear 28 is formed on thereto .to turn therewith and slidable longithe inner end of its hub with clutch mem tudinally thereon, clutch members on the'- 40 bers to engage and interlock wit i similar driving member to engage clutch members 105 v members formed upon the adjacent end of on the adjacent end of 'one of 'the gears .on-

the hub of the gear 18. Vhenthe gear 18 the drivenshaft when said gear is moved is moved longitudinally of the driven shaft toward the driving member, a gear fixed on to brin its clutch members into -engagethe driving member, a countershaft, a gear 45 nientv with the kclutch members on the gear .iiXed on the counter shaft in mesh lwith them() 23 and the sleeve 12 is in'mid position as gear on the driving member, a gear fixed shown in Fig. v1, motion will be transmitted cn the end of vthe counter shaft opposite that from the driving to 'the counter-shaft upon which theother gearis secured, a gear through the gears 4 and 11 'thence through on the driven shaft tofturn freely thereon,

5o the gear 21 and intermediate gear 24 to the an' intermediate gear between the loose gear 115 'loose gear 23, and said gear being connected on the driven sha-ft and the xed gear on tli'e by the clutch Q6 with` the gear 18, motion counter shaft, means on the loose gear to will be' transmitted from said gear to engage interlocking members on the adjaturn the driven-shaft in a direction opposite cent end of the adjacent longitudinally'mov- 5.5 to that in which-the driving shaftis being able gear on the driven shaft'gears o n the 120 turned. The gears 1T and 18 are shifted counter; shaft free to move' longitudinally longitudinally upon the driven shaft by thereon and to turn independently 'of each means of a forked lever secured upon an opother, clutch members on said longitudierating'shaft Q7 mounted in the casing said nally ii'iovable gears to engage the fixed so lever engaging a groove 28 in thehub porgears on the counter shaft when said gears 125 tion connecting saidgears. are moved longitudinally into engagement In this construction gears having a Wide With said fixedgears, an'd means for moving face may, be used without the necessity for the longitudinally 'movable gears on each making the casing of eXtreme length as the shaft.

shifting gears do not move out of 3, A tal'mlssion gearing comprising a 130 aeeaeefa driving member, a driven shaftl in axial alinement with said member, a counter shaft, a gear fixed on'the driving member, a gear fixed on one end of the counter shaft in 'mesh with the gear on the driving member,

connected gears on the driven shaft operatively' connected thereto to turn therewith .and to slide longitudinally thereon, chit-eh members on the opposite ends of said gears,

clutch members on lthe driving member to members at one end, a fixed gear on the counter shaft at its end opposite to that upon which the other fixed gear is secured, clutch members on said fixed gear to engage the cinteh members on the gear seeuredto the sleeve, a gear on the driven shaft free to turn thereon and provided with clutch members to engage the clutch members on the adjacenty end of the longitudinally movable gear on the driven shaft, a gear in Constant engagement with the loose gear on the driven shaft and the fixed gear on the counter shaft, and means for shifting the longitudinally movable gears on the said shaft-s. In testimony whereof I affix my signature in presence of' two Witnesses.

l/VLTER C. SCHNEIDER.

Witnesses LEWIS E. FLANDERS, ANNA M. Donn. 

